Part3_Classfication_Model

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Load packages

library(tidyverse)

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## ✔ tidyr   1.2.1      ✔ stringr 1.4.1 
## ✔ readr   2.1.2      ✔ forcats 0.5.2 
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library(rstanarm)

## Loading required package: Rcpp
## This is rstanarm version 2.21.3
## - See https://mc-stan.org/rstanarm/articles/priors for changes to default priors!
## - Default priors may change, so it's safest to specify priors, even if equivalent to the defaults.
## - For execution on a local, multicore CPU with excess RAM we recommend calling
##   options(mc.cores = parallel::detectCores())

library(coefplot)

## 
## Attaching package: 'coefplot'
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## The following object is masked from 'package:rstanarm':
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##     invlogit

library(bayesplot)

## This is bayesplot version 1.10.0
## - Online documentation and vignettes at mc-stan.org/bayesplot
## - bayesplot theme set to bayesplot::theme_default()
##    * Does _not_ affect other ggplot2 plots
##    * See ?bayesplot_theme_set for details on theme setting

library(caret)

## Loading required package: lattice
## 
## Attaching package: 'caret'
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## The following objects are masked from 'package:rstanarm':
## 
##     compare_models, R2
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## The following object is masked from 'package:purrr':
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##     lift

library(splines)

Read data

df <- readr::read_csv("fall2022_finalproject.csv", col_names = TRUE)

## Rows: 1252 Columns: 11
## ── Column specification ────────────────────────────────────────────────────────
## Delimiter: ","
## chr  (1): m
## dbl (10): x1, x2, x3, x4, v1, v2, v3, v4, v5, output
## 
## ℹ Use `spec()` to retrieve the full column specification for this data.
## ℹ Specify the column types or set `show_col_types = FALSE` to quiet this message.

df %>% glimpse()

## Rows: 1,252
## Columns: 11
## $ x1     <dbl> 0.025878, 0.030768, 0.019325, 0.306212, 0.031296, 0.031073, 0.0…
## $ x2     <dbl> 0.255934, 0.261575, 0.020877, 0.033379, 0.259342, 0.027119, 0.0…
## $ x3     <dbl> 0.492830, 0.498460, 0.258360, 0.255385, 0.264387, 0.260915, 0.0…
## $ x4     <dbl> 0.012770, 0.055779, 0.012424, 0.056190, 0.056594, 0.055192, 0.0…
## $ v1     <dbl> 0.275651, 0.343204, 4.998508, 5.090153, 5.031107, 9.977407, 0.2…
## $ v2     <dbl> 0.033657, 0.027082, 0.030259, 0.052342, 0.517705, 0.532436, 1.0…
## $ v3     <dbl> 1.166214, 1.260579, 1.298285, 1.322005, 1.368195, 1.298797, 1.1…
## $ v4     <dbl> 0.408402, 0.664248, 0.412870, 0.652111, 0.533701, 0.857509, 0.6…
## $ v5     <dbl> 0.525226, 2.866343, 0.409007, 0.861594, 6.451933, 0.958574, 0.2…
## $ m      <chr> "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A"…
## $ output <dbl> 0.786, 0.730, 0.996, 0.326, 0.735, 0.954, 0.969, 0.986, 0.874, …

df_classify <- df %>% 
  
  mutate(
    x5 = 1 - (x1 + x2 + x3 + x4),
         w = x2 / (x3 + x4),
         z = (x1 + x2) / (x5 + x4),
         t = v1 * v2,
        
         outcome = ifelse(output < 0.33, 'event', 'non_event'),
         outcome = factor(outcome, levels = c("event", "non_event")),
         y = ifelse(outcome == 'event', 1, 0) )%>%

  select(x1,x2,x3,x4,v1,v2,v3,v4,v4,v5,x5,w,z,t,m,y) %>% 
  glimpse()

## Rows: 1,252
## Columns: 15
## $ x1 <dbl> 0.025878, 0.030768, 0.019325, 0.306212, 0.031296, 0.031073, 0.02440…
## $ x2 <dbl> 0.255934, 0.261575, 0.020877, 0.033379, 0.259342, 0.027119, 0.03183…
## $ x3 <dbl> 0.492830, 0.498460, 0.258360, 0.255385, 0.264387, 0.260915, 0.02205…
## $ x4 <dbl> 0.012770, 0.055779, 0.012424, 0.056190, 0.056594, 0.055192, 0.05575…
## $ v1 <dbl> 0.275651, 0.343204, 4.998508, 5.090153, 5.031107, 9.977407, 0.23012…
## $ v2 <dbl> 0.033657, 0.027082, 0.030259, 0.052342, 0.517705, 0.532436, 1.00521…
## $ v3 <dbl> 1.166214, 1.260579, 1.298285, 1.322005, 1.368195, 1.298797, 1.16544…
## $ v4 <dbl> 0.408402, 0.664248, 0.412870, 0.652111, 0.533701, 0.857509, 0.69071…
## $ v5 <dbl> 0.525226, 2.866343, 0.409007, 0.861594, 6.451933, 0.958574, 0.20876…
## $ x5 <dbl> 0.212588, 0.153418, 0.689014, 0.348834, 0.388381, 0.625701, 0.86595…
## $ w  <dbl> 0.50619858, 0.47195344, 0.07709835, 0.10712990, 0.80796683, 0.08579…
## $ z  <dbl> 1.25050808, 1.39745312, 0.05731369, 0.83844661, 0.65315580, 0.08546…
## $ t  <dbl> 0.009277586, 0.009294651, 0.151249854, 0.266428788, 2.604629249, 5.…
## $ m  <chr> "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A…
## $ y  <dbl> 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1…

Classification – iiiA) GLM

3 Models using the “base feature” set: • All linear additive features • Interaction of the categorical input with all continuous inputs • All pair-wise interactions of the continuous inputs

All linear additive features

mod_01 <- glm( y ~ x1+x2+x3+x4+v1+v2+v3+v4+v5+m ,data=df_classify,family = "binomial")
mod_01 %>% summary()

## 
## Call:
## glm(formula = y ~ x1 + x2 + x3 + x4 + v1 + v2 + v3 + v4 + v5 + 
##     m, family = "binomial", data = df_classify)
## 
## Deviance Residuals: 
##     Min       1Q   Median       3Q      Max  
## -1.5705  -0.9104  -0.7615   1.2965   1.8979  
## 
## Coefficients:
##              Estimate Std. Error z value Pr(>|z|)    
## (Intercept) -1.638868   0.395566  -4.143 3.43e-05 ***
## x1          -0.940045   0.448437  -2.096  0.03606 *  
## x2          -2.944592   0.667356  -4.412 1.02e-05 ***
## x3           2.956452   0.560799   5.272 1.35e-07 ***
## x4           3.128560   2.373494   1.318  0.18746    
## v1           0.048676   0.022825   2.133  0.03296 *  
## v2           0.019136   0.222965   0.086  0.93161    
## v3           0.029511   0.024715   1.194  0.23245    
## v4          -0.069839   0.268026  -0.261  0.79443    
## v5           0.049319   0.018504   2.665  0.00769 ** 
## mB           0.161574   0.198580   0.814  0.41585    
## mC           0.009261   0.197914   0.047  0.96268    
## mD           0.353823   0.195632   1.809  0.07051 .  
## mE          -0.145554   0.203810  -0.714  0.47513    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for binomial family taken to be 1)
## 
##     Null deviance: 1618.5  on 1251  degrees of freedom
## Residual deviance: 1550.8  on 1238  degrees of freedom
## AIC: 1578.8
## 
## Number of Fisher Scoring iterations: 4

broom::glance(mod_01)

## # A tibble: 1 × 8
##   null.deviance df.null logLik   AIC   BIC deviance df.residual  nobs
##           <dbl>   <int>  <dbl> <dbl> <dbl>    <dbl>       <int> <int>
## 1         1618.    1251  -775. 1579. 1651.    1551.        1238  1252

coefplot::coefplot(mod_01)

Interaction of the categorical input with all continuous inputs

mod_02 <- glm( y ~ m *(x1+x2+x3+x4+v1+v2+v3+v4+v5), data = df_classify , family = "binomial")
mod_02 %>% summary()

## 
## Call:
## glm(formula = y ~ m * (x1 + x2 + x3 + x4 + v1 + v2 + v3 + v4 + 
##     v5), family = "binomial", data = df_classify)
## 
## Deviance Residuals: 
##     Min       1Q   Median       3Q      Max  
## -1.7972  -0.9110  -0.7097   1.2405   1.9902  
## 
## Coefficients:
##               Estimate Std. Error z value Pr(>|z|)  
## (Intercept) -1.4947576  0.9619606  -1.554   0.1202  
## mB          -0.4614288  1.3122786  -0.352   0.7251  
## mC           0.4420951  1.2797575   0.345   0.7298  
## mD           0.3545646  1.2515905   0.283   0.7770  
## mE          -1.0151715  1.3231712  -0.767   0.4429  
## x1          -0.8830433  1.0463785  -0.844   0.3987  
## x2          -3.4473310  1.6360066  -2.107   0.0351 *
## x3           3.4337514  1.4847411   2.313   0.0207 *
## x4           4.3650820  6.6449052   0.657   0.5112  
## v1           0.1026522  0.0549814   1.867   0.0619 .
## v2          -0.4439699  0.5792924  -0.766   0.4434  
## v3           0.0964843  0.0631333   1.528   0.1264  
## v4          -1.2124328  0.6835564  -1.774   0.0761 .
## v5           0.0295043  0.0436720   0.676   0.4993  
## mB:x1       -0.7085670  1.4601087  -0.485   0.6275  
## mC:x1       -0.0105758  1.4354436  -0.007   0.9941  
## mD:x1       -0.3097834  1.4837117  -0.209   0.8346  
## mE:x1       -0.1526414  1.5084529  -0.101   0.9194  
## mB:x2       -2.2060719  2.2435231  -0.983   0.3255  
## mC:x2        2.8941223  2.2247169   1.301   0.1933  
## mD:x2        0.5129689  2.2122785   0.232   0.8166  
## mE:x2        1.4559797  2.2802258   0.639   0.5231  
## mB:x3        0.7743224  1.9516984   0.397   0.6916  
## mC:x3       -1.0844716  1.9274676  -0.563   0.5737  
## mD:x3       -1.1850634  1.9160332  -0.618   0.5362  
## mE:x3        0.0474051  2.0345328   0.023   0.9814  
## mB:x4       -4.4372558  8.4122984  -0.527   0.5979  
## mC:x4        3.1290030  8.4171626   0.372   0.7101  
## mD:x4       -9.4279999  8.3816855  -1.125   0.2607  
## mE:x4        5.4005144  8.8611343   0.609   0.5422  
## mB:v1        0.0005734  0.0787640   0.007   0.9942  
## mC:v1       -0.1087386  0.0738158  -1.473   0.1407  
## mD:v1       -0.0349172  0.0742241  -0.470   0.6380  
## mE:v1       -0.0933476  0.0782170  -1.193   0.2327  
## mB:v2        0.9331555  0.7753031   1.204   0.2287  
## mC:v2        0.2785880  0.7514157   0.371   0.7108  
## mD:v2        0.6789700  0.7565195   0.897   0.3695  
## mE:v2        0.4683291  0.7787704   0.601   0.5476  
## mB:v3       -0.0465609  0.0880613  -0.529   0.5970  
## mC:v3       -0.2130031  0.0846769  -2.515   0.0119 *
## mD:v3       -0.0174209  0.0817275  -0.213   0.8312  
## mE:v3       -0.0346567  0.0871961  -0.397   0.6910  
## mB:v4        1.8057366  0.8897306   2.030   0.0424 *
## mC:v4        1.8145153  0.9242710   1.963   0.0496 *
## mD:v4        1.3045374  0.8935081   1.460   0.1443  
## mE:v4        0.6955283  0.9456294   0.736   0.4620  
## mB:v5        0.0102021  0.0616647   0.165   0.8686  
## mC:v5       -0.0117161  0.0594040  -0.197   0.8436  
## mD:v5        0.0148506  0.0593859   0.250   0.8025  
## mE:v5        0.0694951  0.0638118   1.089   0.2761  
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for binomial family taken to be 1)
## 
##     Null deviance: 1618.5  on 1251  degrees of freedom
## Residual deviance: 1516.9  on 1202  degrees of freedom
## AIC: 1616.9
## 
## Number of Fisher Scoring iterations: 4

broom::glance(mod_02)

## # A tibble: 1 × 8
##   null.deviance df.null logLik   AIC   BIC deviance df.residual  nobs
##           <dbl>   <int>  <dbl> <dbl> <dbl>    <dbl>       <int> <int>
## 1         1618.    1251  -758. 1617. 1874.    1517.        1202  1252

coefplot::coefplot(mod_02)

### All pair-wise interactions of the continuous inputs

mod_03 <- glm (y ~ (x1+x2+x3+x4+v1+v2+v3+v4+v5)^2, data = df_classify , family="binomial")
mod_03 %>% summary()

## 
## Call:
## glm(formula = y ~ (x1 + x2 + x3 + x4 + v1 + v2 + v3 + v4 + v5)^2, 
##     family = "binomial", data = df_classify)
## 
## Deviance Residuals: 
##     Min       1Q   Median       3Q      Max  
## -1.8518  -0.8941  -0.6980   1.2150   2.2462  
## 
## Coefficients:
##               Estimate Std. Error z value Pr(>|z|)   
## (Intercept)  -3.482779   1.571970  -2.216  0.02672 * 
## x1           -2.292859   2.487820  -0.922  0.35672   
## x2            7.547011   4.646086   1.624  0.10429   
## x3            9.000339   3.100987   2.902  0.00370 **
## x4           -3.972094  13.309325  -0.298  0.76536   
## v1            0.018678   0.130085   0.144  0.88583   
## v2            0.849226   1.273288   0.667  0.50480   
## v3            0.135280   0.131988   1.025  0.30539   
## v4            1.375902   1.693645   0.812  0.41657   
## v5            0.167167   0.115792   1.444  0.14883   
## x1:x2       -16.872455   5.313334  -3.175  0.00150 **
## x1:x3        11.677509   3.972764   2.939  0.00329 **
## x1:x4         8.836180  17.285010   0.511  0.60921   
## x1:v1         0.429897   0.161986   2.654  0.00796 **
## x1:v2        -1.665361   1.586868  -1.049  0.29396   
## x1:v3        -0.003944   0.175970  -0.022  0.98212   
## x1:v4         0.824703   2.058607   0.401  0.68871   
## x1:v5        -0.432664   0.137896  -3.138  0.00170 **
## x2:x3       -21.908896   7.427275  -2.950  0.00318 **
## x2:x4       -22.852832  27.606174  -0.828  0.40777   
## x2:v1         0.116096   0.260590   0.446  0.65595   
## x2:v2        -1.205246   2.491184  -0.484  0.62852   
## x2:v3        -0.350935   0.281012  -1.249  0.21173   
## x2:v4         5.391365   2.996124   1.799  0.07195 . 
## x2:v5        -0.062615   0.204069  -0.307  0.75897   
## x3:x4         5.415657  20.151145   0.269  0.78812   
## x3:v1         0.183565   0.194253   0.945  0.34467   
## x3:v2        -3.252478   1.883130  -1.727  0.08414 . 
## x3:v3        -0.202986   0.210130  -0.966  0.33404   
## x3:v4        -8.426121   2.672559  -3.153  0.00162 **
## x3:v5        -0.156367   0.176906  -0.884  0.37675   
## x4:v1         1.549891   0.837626   1.850  0.06426 . 
## x4:v2         7.489150   8.189338   0.915  0.36045   
## x4:v3         0.605886   0.896635   0.676  0.49921   
## x4:v4       -10.169153  11.272006  -0.902  0.36697   
## x4:v5        -0.643549   0.760659  -0.846  0.39753   
## v1:v2        -0.168172   0.076424  -2.201  0.02777 * 
## v1:v3        -0.005243   0.008186  -0.640  0.52186   
## v1:v4        -0.040403   0.111275  -0.363  0.71654   
## v1:v5        -0.014710   0.007063  -2.083  0.03726 * 
## v2:v3         0.016918   0.081530   0.208  0.83562   
## v2:v4         0.062893   1.029916   0.061  0.95131   
## v2:v5         0.188100   0.070056   2.685  0.00725 **
## v3:v4        -0.037052   0.115915  -0.320  0.74923   
## v3:v5         0.001519   0.007692   0.197  0.84346   
## v4:v5         0.107685   0.089063   1.209  0.22663   
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for binomial family taken to be 1)
## 
##     Null deviance: 1618.5  on 1251  degrees of freedom
## Residual deviance: 1484.4  on 1206  degrees of freedom
## AIC: 1576.4
## 
## Number of Fisher Scoring iterations: 4

broom::glance(mod_03)

## # A tibble: 1 × 8
##   null.deviance df.null logLik   AIC   BIC deviance df.residual  nobs
##           <dbl>   <int>  <dbl> <dbl> <dbl>    <dbl>       <int> <int>
## 1         1618.    1251  -742. 1576. 1812.    1484.        1206  1252

coefplot::coefplot(mod_03)

Interaction of m with continuous inputs of the derived features.

mod_04 <- glm(y ~ (x5+w+t+z), data = df_classify, family="binomial")
mod_04 %>% summary()

## 
## Call:
## glm(formula = y ~ (x5 + w + t + z), family = "binomial", data = df_classify)
## 
## Deviance Residuals: 
##     Min       1Q   Median       3Q      Max  
## -1.8368  -0.8989  -0.5036   1.0861   2.2265  
## 
## Coefficients:
##             Estimate Std. Error z value Pr(>|z|)    
## (Intercept)  4.34897    0.39961  10.883  < 2e-16 ***
## x5          -8.29622    0.75922 -10.927  < 2e-16 ***
## w           -0.78321    0.24051  -3.256  0.00113 ** 
## t            0.03939    0.03136   1.256  0.20910    
## z           -1.29655    0.10803 -12.002  < 2e-16 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for binomial family taken to be 1)
## 
##     Null deviance: 1618.5  on 1251  degrees of freedom
## Residual deviance: 1386.1  on 1247  degrees of freedom
## AIC: 1396.1
## 
## Number of Fisher Scoring iterations: 4

broom::glance(mod_04)

## # A tibble: 1 × 8
##   null.deviance df.null logLik   AIC   BIC deviance df.residual  nobs
##           <dbl>   <int>  <dbl> <dbl> <dbl>    <dbl>       <int> <int>
## 1         1618.    1251  -693. 1396. 1422.    1386.        1247  1252

coefplot::coefplot(mod_04)

Interaction of the categorical input with continuous features

mod_05 <- glm(y ~ m*(x5+w+t+z), data = df_classify ,family="binomial")
mod_05 %>% summary()

## 
## Call:
## glm(formula = y ~ m * (x5 + w + t + z), family = "binomial", 
##     data = df_classify)
## 
## Deviance Residuals: 
##     Min       1Q   Median       3Q      Max  
## -2.0328  -0.8980  -0.4927   1.0907   2.2080  
## 
## Coefficients:
##              Estimate Std. Error z value Pr(>|z|)    
## (Intercept)  4.373934   0.951136   4.599 4.25e-06 ***
## mB           1.678746   1.423895   1.179   0.2384    
## mC          -0.437979   1.268036  -0.345   0.7298    
## mD           0.013657   1.303130   0.010   0.9916    
## mE          -0.759078   1.299046  -0.584   0.5590    
## x5          -8.132217   1.707762  -4.762 1.92e-06 ***
## w           -0.434797   0.564690  -0.770   0.4413    
## t            0.004310   0.084305   0.051   0.9592    
## z           -1.403145   0.266345  -5.268 1.38e-07 ***
## mB:x5       -2.050562   2.560711  -0.801   0.4233    
## mC:x5       -0.042311   2.379440  -0.018   0.9858    
## mD:x5        0.039432   2.437411   0.016   0.9871    
## mE:x5        0.134955   2.441364   0.055   0.9559    
## mB:w        -1.344832   0.791665  -1.699   0.0894 .  
## mC:w         0.001123   0.777393   0.001   0.9988    
## mD:w        -0.410283   0.757012  -0.542   0.5878    
## mE:w         0.140477   0.808354   0.174   0.8620    
## mB:t         0.083282   0.114261   0.729   0.4661    
## mC:t         0.026706   0.105984   0.252   0.8011    
## mD:t         0.064626   0.109327   0.591   0.5544    
## mE:t        -0.002165   0.108261  -0.020   0.9840    
## mB:z        -0.221865   0.380164  -0.584   0.5595    
## mC:z         0.185820   0.349122   0.532   0.5946    
## mD:z         0.145608   0.356011   0.409   0.6825    
## mE:z         0.217792   0.361860   0.602   0.5473    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for binomial family taken to be 1)
## 
##     Null deviance: 1618.5  on 1251  degrees of freedom
## Residual deviance: 1367.6  on 1227  degrees of freedom
## AIC: 1417.6
## 
## Number of Fisher Scoring iterations: 5

broom::glance(mod_05)

## # A tibble: 1 × 8
##   null.deviance df.null logLik   AIC   BIC deviance df.residual  nobs
##           <dbl>   <int>  <dbl> <dbl> <dbl>    <dbl>       <int> <int>
## 1         1618.    1251  -684. 1418. 1546.    1368.        1227  1252

coefplot::coefplot(mod_05)

Pair-wise interactions between the continuous features

mod_06 <- glm(y ~ (x5+w+t+z)^2, data = df_classify)
mod_06 %>% summary()

## 
## Call:
## glm(formula = y ~ (x5 + w + t + z)^2, data = df_classify)
## 
## Deviance Residuals: 
##     Min       1Q   Median       3Q      Max  
## -0.7125  -0.3726  -0.1162   0.4602   0.9311  
## 
## Coefficients:
##              Estimate Std. Error t value Pr(>|t|)    
## (Intercept)  1.057990   0.138400   7.644 4.18e-14 ***
## x5          -1.122365   0.248604  -4.515 6.94e-06 ***
## w           -0.006703   0.229783  -0.029  0.97673    
## t            0.016140   0.025913   0.623  0.53348    
## z           -0.216381   0.037164  -5.822 7.38e-09 ***
## x5:w        -0.577442   0.417252  -1.384  0.16663    
## x5:t        -0.015527   0.044778  -0.347  0.72883    
## x5:z         0.362681   0.127002   2.856  0.00437 ** 
## w:t          0.005940   0.019758   0.301  0.76374    
## w:z         -0.026031   0.055704  -0.467  0.64036    
## t:z         -0.003591   0.007192  -0.499  0.61761    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for gaussian family taken to be 0.1893906)
## 
##     Null deviance: 284.17  on 1251  degrees of freedom
## Residual deviance: 235.03  on 1241  degrees of freedom
## AIC: 1482.7
## 
## Number of Fisher Scoring iterations: 2

broom::glance(mod_06)

## # A tibble: 1 × 8
##   null.deviance df.null logLik   AIC   BIC deviance df.residual  nobs
##           <dbl>   <int>  <dbl> <dbl> <dbl>    <dbl>       <int> <int>
## 1          284.    1251  -729. 1483. 1544.     235.        1241  1252

coefplot::coefplot(mod_06)

Model with natural spline on continuous variables

mod_07 <- glm(y ~ ns(x1, 2)+ns(x2, 2)+ ns(x3,2) + ns(x4,2)+ns(v1,2)+ns(v2,2)+ns(v3,2)+ns(v4,2)+ns(v5,2), data = df_classify)
mod_07 %>% summary()

## 
## Call:
## glm(formula = y ~ ns(x1, 2) + ns(x2, 2) + ns(x3, 2) + ns(x4, 
##     2) + ns(v1, 2) + ns(v2, 2) + ns(v3, 2) + ns(v4, 2) + ns(v5, 
##     2), data = df_classify)
## 
## Deviance Residuals: 
##     Min       1Q   Median       3Q      Max  
## -0.7462  -0.3631  -0.1997   0.4945   1.2728  
## 
## Coefficients:
##             Estimate Std. Error t value Pr(>|t|)    
## (Intercept)  0.01621    0.08917   0.182 0.855787    
## ns(x1, 2)1   0.30082    0.08537   3.524 0.000441 ***
## ns(x1, 2)2  -0.60199    0.06424  -9.371  < 2e-16 ***
## ns(x2, 2)1  -0.56362    0.08441  -6.677 3.68e-11 ***
## ns(x2, 2)2  -0.22922    0.08943  -2.563 0.010490 *  
## ns(x3, 2)1   0.55591    0.10404   5.343 1.09e-07 ***
## ns(x3, 2)2   0.14891    0.05444   2.735 0.006326 ** 
## ns(x4, 2)1  -0.06161    0.08887  -0.693 0.488316    
## ns(x4, 2)2   0.12200    0.04974   2.453 0.014319 *  
## ns(v1, 2)1   0.16581    0.08321   1.993 0.046535 *  
## ns(v1, 2)2   0.05344    0.04711   1.134 0.256883    
## ns(v2, 2)1  -0.01384    0.07990  -0.173 0.862499    
## ns(v2, 2)2   0.02124    0.04750   0.447 0.654822    
## ns(v3, 2)1  -0.01591    0.08265  -0.193 0.847354    
## ns(v3, 2)2   0.08686    0.04724   1.839 0.066187 .  
## ns(v4, 2)1   0.06299    0.09718   0.648 0.516999    
## ns(v4, 2)2  -0.06088    0.05439  -1.119 0.263245    
## ns(v5, 2)1   0.12317    0.07828   1.573 0.115885    
## ns(v5, 2)2   0.05400    0.03690   1.463 0.143609    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for gaussian family taken to be 0.19853)
## 
##     Null deviance: 284.17  on 1251  degrees of freedom
## Residual deviance: 244.79  on 1233  degrees of freedom
## AIC: 1549.6
## 
## Number of Fisher Scoring iterations: 2

broom::glance(mod_07)

## # A tibble: 1 × 8
##   null.deviance df.null logLik   AIC   BIC deviance df.residual  nobs
##           <dbl>   <int>  <dbl> <dbl> <dbl>    <dbl>       <int> <int>
## 1          284.    1251  -755. 1550. 1652.     245.        1233  1252

coefplot::coefplot(mod_07)

Model with natural spline on derived features continuous variables

mod_08 <- glm(y~ ns(z, 2)+ns(w, 2)+ ns(x5,2) + +ns(v1,2)+ns(v3,2)+ns(v4,2), data = df_classify)
mod_08 %>% summary()

## 
## Call:
## glm(formula = y ~ ns(z, 2) + ns(w, 2) + ns(x5, 2) + +ns(v1, 2) + 
##     ns(v3, 2) + ns(v4, 2), data = df_classify)
## 
## Deviance Residuals: 
##     Min       1Q   Median       3Q      Max  
## -0.7605  -0.3736  -0.1209   0.4559   0.9311  
## 
## Coefficients:
##              Estimate Std. Error t value Pr(>|t|)    
## (Intercept)  0.805612   0.161508   4.988 6.97e-07 ***
## ns(z, 2)1   -0.572107   0.204346  -2.800 0.005194 ** 
## ns(z, 2)2   -1.002054   0.099250 -10.096  < 2e-16 ***
## ns(w, 2)1   -0.403748   0.080349  -5.025 5.78e-07 ***
## ns(w, 2)2   -0.140413   0.045496  -3.086 0.002072 ** 
## ns(x5, 2)1  -0.942542   0.242719  -3.883 0.000109 ***
## ns(x5, 2)2  -0.644201   0.131831  -4.887 1.16e-06 ***
## ns(v1, 2)1   0.259013   0.078237   3.311 0.000958 ***
## ns(v1, 2)2   0.024286   0.044780   0.542 0.587677    
## ns(v3, 2)1   0.099027   0.077302   1.281 0.200418    
## ns(v3, 2)2  -0.008322   0.044609  -0.187 0.852034    
## ns(v4, 2)1   0.077796   0.093595   0.831 0.406021    
## ns(v4, 2)2  -0.037448   0.052128  -0.718 0.472655    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for gaussian family taken to be 0.1837857)
## 
##     Null deviance: 284.17  on 1251  degrees of freedom
## Residual deviance: 227.71  on 1239  degrees of freedom
## AIC: 1447.1
## 
## Number of Fisher Scoring iterations: 2

broom::glance(mod_08)

## # A tibble: 1 × 8
##   null.deviance df.null logLik   AIC   BIC deviance df.residual  nobs
##           <dbl>   <int>  <dbl> <dbl> <dbl>    <dbl>       <int> <int>
## 1          284.    1251  -710. 1447. 1519.     228.        1239  1252

coefplot::coefplot(mod_08)

Model with natural spline and interaction of base variables and derived features and sum of categorical variables

mod_09 <- glm(y~ (ns(z, 2) * ns(x5, 2) * ns(x2, 2) * ns(x3, 2) + m), data = df_classify)
mod_09 %>% summary()

## 
## Call:
## glm(formula = y ~ (ns(z, 2) * ns(x5, 2) * ns(x2, 2) * ns(x3, 
##     2) + m), data = df_classify)
## 
## Deviance Residuals: 
##      Min        1Q    Median        3Q       Max  
## -0.96706  -0.21743  -0.00809   0.23747   0.84758  
## 
## Coefficients:
##                                              Estimate Std. Error t value
## (Intercept)                                -7.039e+00  1.006e+01  -0.700
## ns(z, 2)1                                   2.625e+01  1.680e+01   1.562
## ns(z, 2)2                                   3.528e+00  7.722e+00   0.457
## ns(x5, 2)1                                  1.591e+01  1.681e+01   0.947
## ns(x5, 2)2                                  3.092e+00  6.484e+00   0.477
## ns(x2, 2)1                                 -3.733e+01  4.145e+01  -0.901
## ns(x2, 2)2                                 -1.217e+02  7.793e+01  -1.561
## ns(x3, 2)1                                  2.421e+01  1.799e+01   1.346
## ns(x3, 2)2                                  8.959e-01  5.723e+00   0.157
## mB                                          4.590e-02  3.404e-02   1.348
## mC                                          3.685e-02  3.364e-02   1.096
## mD                                          4.509e-02  3.383e-02   1.333
## mE                                         -2.804e-02  3.396e-02  -0.826
## ns(z, 2)1:ns(x5, 2)1                       -5.477e+01  8.152e+01  -0.672
## ns(z, 2)2:ns(x5, 2)1                        5.284e+00  1.164e+02   0.045
## ns(z, 2)1:ns(x5, 2)2                        2.413e+01  1.405e+02   0.172
## ns(z, 2)2:ns(x5, 2)2                        9.441e+01  2.078e+02   0.454
## ns(z, 2)1:ns(x2, 2)1                        5.779e+00  6.486e+01   0.089
## ns(z, 2)2:ns(x2, 2)1                        3.699e+01  2.830e+01   1.307
## ns(z, 2)1:ns(x2, 2)2                        1.557e+02  1.224e+02   1.272
## ns(z, 2)2:ns(x2, 2)2                        1.036e+02  5.312e+01   1.950
## ns(x5, 2)1:ns(x2, 2)1                       7.644e+01  8.337e+01   0.917
## ns(x5, 2)2:ns(x2, 2)1                       6.412e+00  2.886e+01   0.222
## ns(x5, 2)1:ns(x2, 2)2                       2.394e+02  1.551e+02   1.543
## ns(x5, 2)2:ns(x2, 2)2                       4.957e+01  5.401e+01   0.918
## ns(z, 2)1:ns(x3, 2)1                       -6.409e+01  3.052e+01  -2.100
## ns(z, 2)2:ns(x3, 2)1                       -1.316e+01  1.405e+01  -0.937
## ns(z, 2)1:ns(x3, 2)2                       -9.061e+00  9.154e+00  -0.990
## ns(z, 2)2:ns(x3, 2)2                       -4.798e-01  3.968e+00  -0.121
## ns(x5, 2)1:ns(x3, 2)1                      -4.964e+01  3.005e+01  -1.652
## ns(x5, 2)2:ns(x3, 2)1                      -1.141e+01  1.188e+01  -0.960
## ns(x5, 2)1:ns(x3, 2)2                      -3.599e+00  9.808e+00  -0.367
## ns(x5, 2)2:ns(x3, 2)2                       2.389e+00  4.743e+00   0.504
## ns(x2, 2)1:ns(x3, 2)1                       5.323e+01  7.593e+01   0.701
## ns(x2, 2)2:ns(x3, 2)1                       2.145e+02  1.368e+02   1.568
## ns(x2, 2)1:ns(x3, 2)2                       1.684e+01  2.140e+01   0.787
## ns(x2, 2)2:ns(x3, 2)2                       4.151e+01  4.078e+01   1.018
## ns(z, 2)1:ns(x5, 2)1:ns(x2, 2)1            -6.740e+02  7.359e+02  -0.916
## ns(z, 2)2:ns(x5, 2)1:ns(x2, 2)1            -9.852e+02  1.215e+03  -0.811
## ns(z, 2)1:ns(x5, 2)2:ns(x2, 2)1            -1.383e+03  1.410e+03  -0.981
## ns(z, 2)2:ns(x5, 2)2:ns(x2, 2)1            -1.778e+03  2.243e+03  -0.793
## ns(z, 2)1:ns(x5, 2)1:ns(x2, 2)2            -1.725e+03  1.311e+03  -1.316
## ns(z, 2)2:ns(x5, 2)1:ns(x2, 2)2            -2.237e+03  2.167e+03  -1.032
## ns(z, 2)1:ns(x5, 2)2:ns(x2, 2)2            -2.905e+03  2.454e+03  -1.184
## ns(z, 2)2:ns(x5, 2)2:ns(x2, 2)2            -3.569e+03  3.932e+03  -0.908
## ns(z, 2)1:ns(x5, 2)1:ns(x3, 2)1             3.514e+02  1.600e+02   2.196
## ns(z, 2)2:ns(x5, 2)1:ns(x3, 2)1             3.371e+02  2.376e+02   1.418
## ns(z, 2)1:ns(x5, 2)2:ns(x3, 2)1             3.976e+02  2.817e+02   1.411
## ns(z, 2)2:ns(x5, 2)2:ns(x3, 2)1             4.480e+02  4.271e+02   1.049
## ns(z, 2)1:ns(x5, 2)1:ns(x3, 2)2             4.427e+01  1.228e+02   0.360
## ns(z, 2)2:ns(x5, 2)1:ns(x3, 2)2             1.707e+01  1.957e+02   0.087
## ns(z, 2)1:ns(x5, 2)2:ns(x3, 2)2             9.282e+00  2.276e+02   0.041
## ns(z, 2)2:ns(x5, 2)2:ns(x3, 2)2            -4.818e+00  3.577e+02  -0.013
## ns(z, 2)1:ns(x2, 2)1:ns(x3, 2)1             7.501e+00  1.196e+02   0.063
## ns(z, 2)2:ns(x2, 2)1:ns(x3, 2)1            -5.937e+01  5.199e+01  -1.142
## ns(z, 2)1:ns(x2, 2)2:ns(x3, 2)1            -2.723e+02  2.158e+02  -1.262
## ns(z, 2)2:ns(x2, 2)2:ns(x3, 2)1            -1.839e+02  9.309e+01  -1.976
## ns(z, 2)1:ns(x2, 2)1:ns(x3, 2)2             2.108e+00  3.333e+01   0.063
## ns(z, 2)2:ns(x2, 2)1:ns(x3, 2)2            -1.792e+01  1.396e+01  -1.284
## ns(z, 2)1:ns(x2, 2)2:ns(x3, 2)2            -5.064e+01  6.400e+01  -0.791
## ns(z, 2)2:ns(x2, 2)2:ns(x3, 2)2            -3.664e+01  2.745e+01  -1.335
## ns(x5, 2)1:ns(x2, 2)1:ns(x3, 2)1           -1.456e+02  1.518e+02  -0.959
## ns(x5, 2)2:ns(x2, 2)1:ns(x3, 2)1           -3.902e+01  5.651e+01  -0.690
## ns(x5, 2)1:ns(x2, 2)2:ns(x3, 2)1           -4.846e+02  2.729e+02  -1.776
## ns(x5, 2)2:ns(x2, 2)2:ns(x3, 2)1           -1.503e+02  1.080e+02  -1.391
## ns(x5, 2)1:ns(x2, 2)1:ns(x3, 2)2           -6.065e+01  4.142e+01  -1.464
## ns(x5, 2)2:ns(x2, 2)1:ns(x3, 2)2           -5.740e+01  4.740e+01  -1.211
## ns(x5, 2)1:ns(x2, 2)2:ns(x3, 2)2           -1.280e+02  7.992e+01  -1.602
## ns(x5, 2)2:ns(x2, 2)2:ns(x3, 2)2           -1.120e+02  8.744e+01  -1.281
## ns(z, 2)1:ns(x5, 2)1:ns(x2, 2)1:ns(x3, 2)1  7.970e+02  1.372e+03   0.581
## ns(z, 2)2:ns(x5, 2)1:ns(x2, 2)1:ns(x3, 2)1  9.531e+02  2.265e+03   0.421
## ns(z, 2)1:ns(x5, 2)2:ns(x2, 2)1:ns(x3, 2)1  1.660e+03  2.630e+03   0.631
## ns(z, 2)2:ns(x5, 2)2:ns(x2, 2)1:ns(x3, 2)1  1.703e+03  4.184e+03   0.407
## ns(z, 2)1:ns(x5, 2)1:ns(x2, 2)2:ns(x3, 2)1  3.356e+03  2.367e+03   1.417
## ns(z, 2)2:ns(x5, 2)1:ns(x2, 2)2:ns(x3, 2)1  4.120e+03  3.947e+03   1.044
## ns(z, 2)1:ns(x5, 2)2:ns(x2, 2)2:ns(x3, 2)1  5.617e+03  4.449e+03   1.262
## ns(z, 2)2:ns(x5, 2)2:ns(x2, 2)2:ns(x3, 2)1  6.590e+03  7.167e+03   0.919
## ns(z, 2)1:ns(x5, 2)1:ns(x2, 2)1:ns(x3, 2)2  3.784e+02  4.205e+02   0.900
## ns(z, 2)2:ns(x5, 2)1:ns(x2, 2)1:ns(x3, 2)2  5.188e+02  6.738e+02   0.770
## ns(z, 2)1:ns(x5, 2)2:ns(x2, 2)1:ns(x3, 2)2  8.259e+02  7.949e+02   1.039
## ns(z, 2)2:ns(x5, 2)2:ns(x2, 2)1:ns(x3, 2)2  9.248e+02  1.237e+03   0.748
## ns(z, 2)1:ns(x5, 2)1:ns(x2, 2)2:ns(x3, 2)2  7.199e+02  6.406e+02   1.124
## ns(z, 2)2:ns(x5, 2)1:ns(x2, 2)2:ns(x3, 2)2  8.933e+02  1.016e+03   0.879
## ns(z, 2)1:ns(x5, 2)2:ns(x2, 2)2:ns(x3, 2)2  1.301e+03  1.187e+03   1.096
## ns(z, 2)2:ns(x5, 2)2:ns(x2, 2)2:ns(x3, 2)2  1.434e+03  1.846e+03   0.777
##                                            Pr(>|t|)  
## (Intercept)                                  0.4840  
## ns(z, 2)1                                    0.1185  
## ns(z, 2)2                                    0.6478  
## ns(x5, 2)1                                   0.3439  
## ns(x5, 2)2                                   0.6335  
## ns(x2, 2)1                                   0.3680  
## ns(x2, 2)2                                   0.1188  
## ns(x3, 2)1                                   0.1786  
## ns(x3, 2)2                                   0.8756  
## mB                                           0.1778  
## mC                                           0.2735  
## mD                                           0.1829  
## mE                                           0.4092  
## ns(z, 2)1:ns(x5, 2)1                         0.5018  
## ns(z, 2)2:ns(x5, 2)1                         0.9638  
## ns(z, 2)1:ns(x5, 2)2                         0.8637  
## ns(z, 2)2:ns(x5, 2)2                         0.6497  
## ns(z, 2)1:ns(x2, 2)1                         0.9290  
## ns(z, 2)2:ns(x2, 2)1                         0.1915  
## ns(z, 2)1:ns(x2, 2)2                         0.2035  
## ns(z, 2)2:ns(x2, 2)2                         0.0515 .
## ns(x5, 2)1:ns(x2, 2)1                        0.3594  
## ns(x5, 2)2:ns(x2, 2)1                        0.8242  
## ns(x5, 2)1:ns(x2, 2)2                        0.1230  
## ns(x5, 2)2:ns(x2, 2)2                        0.3589  
## ns(z, 2)1:ns(x3, 2)1                         0.0359 *
## ns(z, 2)2:ns(x3, 2)1                         0.3492  
## ns(z, 2)1:ns(x3, 2)2                         0.3225  
## ns(z, 2)2:ns(x3, 2)2                         0.9038  
## ns(x5, 2)1:ns(x3, 2)1                        0.0988 .
## ns(x5, 2)2:ns(x3, 2)1                        0.3371  
## ns(x5, 2)1:ns(x3, 2)2                        0.7138  
## ns(x5, 2)2:ns(x3, 2)2                        0.6146  
## ns(x2, 2)1:ns(x3, 2)1                        0.4834  
## ns(x2, 2)2:ns(x3, 2)1                        0.1172  
## ns(x2, 2)1:ns(x3, 2)2                        0.4313  
## ns(x2, 2)2:ns(x3, 2)2                        0.3090  
## ns(z, 2)1:ns(x5, 2)1:ns(x2, 2)1              0.3599  
## ns(z, 2)2:ns(x5, 2)1:ns(x2, 2)1              0.4176  
## ns(z, 2)1:ns(x5, 2)2:ns(x2, 2)1              0.3268  
## ns(z, 2)2:ns(x5, 2)2:ns(x2, 2)1              0.4282  
## ns(z, 2)1:ns(x5, 2)1:ns(x2, 2)2              0.1886  
## ns(z, 2)2:ns(x5, 2)1:ns(x2, 2)2              0.3022  
## ns(z, 2)1:ns(x5, 2)2:ns(x2, 2)2              0.2368  
## ns(z, 2)2:ns(x5, 2)2:ns(x2, 2)2              0.3642  
## ns(z, 2)1:ns(x5, 2)1:ns(x3, 2)1              0.0283 *
## ns(z, 2)2:ns(x5, 2)1:ns(x3, 2)1              0.1563  
## ns(z, 2)1:ns(x5, 2)2:ns(x3, 2)1              0.1584  
## ns(z, 2)2:ns(x5, 2)2:ns(x3, 2)1              0.2944  
## ns(z, 2)1:ns(x5, 2)1:ns(x3, 2)2              0.7186  
## ns(z, 2)2:ns(x5, 2)1:ns(x3, 2)2              0.9305  
## ns(z, 2)1:ns(x5, 2)2:ns(x3, 2)2              0.9675  
## ns(z, 2)2:ns(x5, 2)2:ns(x3, 2)2              0.9893  
## ns(z, 2)1:ns(x2, 2)1:ns(x3, 2)1              0.9500  
## ns(z, 2)2:ns(x2, 2)1:ns(x3, 2)1              0.2536  
## ns(z, 2)1:ns(x2, 2)2:ns(x3, 2)1              0.2073  
## ns(z, 2)2:ns(x2, 2)2:ns(x3, 2)1              0.0484 *
## ns(z, 2)1:ns(x2, 2)1:ns(x3, 2)2              0.9496  
## ns(z, 2)2:ns(x2, 2)1:ns(x3, 2)2              0.1994  
## ns(z, 2)1:ns(x2, 2)2:ns(x3, 2)2              0.4289  
## ns(z, 2)2:ns(x2, 2)2:ns(x3, 2)2              0.1822  
## ns(x5, 2)1:ns(x2, 2)1:ns(x3, 2)1             0.3376  
## ns(x5, 2)2:ns(x2, 2)1:ns(x3, 2)1             0.4901  
## ns(x5, 2)1:ns(x2, 2)2:ns(x3, 2)1             0.0760 .
## ns(x5, 2)2:ns(x2, 2)2:ns(x3, 2)1             0.1644  
## ns(x5, 2)1:ns(x2, 2)1:ns(x3, 2)2             0.1435  
## ns(x5, 2)2:ns(x2, 2)1:ns(x3, 2)2             0.2261  
## ns(x5, 2)1:ns(x2, 2)2:ns(x3, 2)2             0.1095  
## ns(x5, 2)2:ns(x2, 2)2:ns(x3, 2)2             0.2006  
## ns(z, 2)1:ns(x5, 2)1:ns(x2, 2)1:ns(x3, 2)1   0.5615  
## ns(z, 2)2:ns(x5, 2)1:ns(x2, 2)1:ns(x3, 2)1   0.6740  
## ns(z, 2)1:ns(x5, 2)2:ns(x2, 2)1:ns(x3, 2)1   0.5281  
## ns(z, 2)2:ns(x5, 2)2:ns(x2, 2)1:ns(x3, 2)1   0.6840  
## ns(z, 2)1:ns(x5, 2)1:ns(x2, 2)2:ns(x3, 2)1   0.1566  
## ns(z, 2)2:ns(x5, 2)1:ns(x2, 2)2:ns(x3, 2)1   0.2968  
## ns(z, 2)1:ns(x5, 2)2:ns(x2, 2)2:ns(x3, 2)1   0.2070  
## ns(z, 2)2:ns(x5, 2)2:ns(x2, 2)2:ns(x3, 2)1   0.3581  
## ns(z, 2)1:ns(x5, 2)1:ns(x2, 2)1:ns(x3, 2)2   0.3684  
## ns(z, 2)2:ns(x5, 2)1:ns(x2, 2)1:ns(x3, 2)2   0.4415  
## ns(z, 2)1:ns(x5, 2)2:ns(x2, 2)1:ns(x3, 2)2   0.2990  
## ns(z, 2)2:ns(x5, 2)2:ns(x2, 2)1:ns(x3, 2)2   0.4549  
## ns(z, 2)1:ns(x5, 2)1:ns(x2, 2)2:ns(x3, 2)2   0.2613  
## ns(z, 2)2:ns(x5, 2)1:ns(x2, 2)2:ns(x3, 2)2   0.3795  
## ns(z, 2)1:ns(x5, 2)2:ns(x2, 2)2:ns(x3, 2)2   0.2734  
## ns(z, 2)2:ns(x5, 2)2:ns(x2, 2)2:ns(x3, 2)2   0.4375  
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for gaussian family taken to be 0.1287638)
## 
##     Null deviance: 284.17  on 1251  degrees of freedom
## Residual deviance: 150.27  on 1167  degrees of freedom
## AIC: 1070.7
## 
## Number of Fisher Scoring iterations: 2

broom::glance(mod_09)

## # A tibble: 1 × 8
##   null.deviance df.null logLik   AIC   BIC deviance df.residual  nobs
##           <dbl>   <int>  <dbl> <dbl> <dbl>    <dbl>       <int> <int>
## 1          284.    1251  -449. 1071. 1512.     150.        1167  1252

coefplot::coefplot(mod_09)

perf_metrics <- function(mod, mod_name)
{
  broom::glance(mod) %>% 
    mutate(model_name = mod_name, rmse = sqrt(mean(mod$residuals^2)))
}

model_results <- purrr::map2_dfr(list(mod_01,mod_02, mod_03, mod_04,mod_05,mod_06,mod_07,
                                      mod_08,mod_09),
                                 sprintf("mod%02d", 1:9),
                                 perf_metrics)

model_results %>%
  select(model_name, AIC, BIC, rmse)

## # A tibble: 9 × 4
##   model_name   AIC   BIC  rmse
##   <chr>      <dbl> <dbl> <dbl>
## 1 mod01      1579. 1651. 2.15 
## 2 mod02      1617. 1874. 2.20 
## 3 mod03      1576. 1812. 2.27 
## 4 mod04      1396. 1422. 2.22 
## 5 mod05      1418. 1546. 2.25 
## 6 mod06      1483. 1544. 0.433
## 7 mod07      1550. 1652. 0.442
## 8 mod08      1447. 1519. 0.426
## 9 mod09      1071. 1512. 0.346

model_results %>% 
  select(model_name, AIC, BIC, rmse) %>% 
  pivot_longer(!c("model_name")) %>% 
  ggplot(mapping = aes(x = model_name, y = value)) +
  geom_point(color = 'blue') +
  facet_wrap(~name, scales = "free_y") +
  theme_bw()

coefplot(mod_07)

coefplot(mod_08)

coefplot(mod_09)

mod_06 %>% readr::write_rds('mod_07.rds')
mod_07 %>% readr::write_rds('mod_08.rds')
mod_08 %>% readr::write_rds('mod_09.rds')

mod_06 <- readr::read_rds('mod_07.rds')
mod_07 <- readr::read_rds('mod_08.rds')
mod_08 <- readr::read_rds('mod_09.rds')

set.seed(43212)
bin_bayes_mod01 <- stan_glm( y ~ m *((x1+x2+x3+x4)+(v1+v2+v3+v4+v5))   , data = df_classify,
                 family = gaussian(),
                 prior = default_prior_coef(family))

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plot(bin_bayes_mod01) + theme_bw()

set.seed(43212)
bin_bayes_mod02 <- stan_glm( y ~ m*(x5+w+z+t), data = df_classify,family = gaussian(),
                 prior = default_prior_coef(family))

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plot(bin_bayes_mod02) + theme_bw()

all_models_rsq <-purrr::map2_dfr(list(bin_bayes_mod01, bin_bayes_mod02 ),
                as.character(1:2),
                function(mod, mod_name){tibble::tibble(rsquared = bayes_R2(mod)) %>% 
                    mutate(model_name = mod_name)}) 
all_models_rsq%>% 
  ggplot(mapping = aes(x = rsquared)) +
  geom_freqpoly(bins = 55,
                 mapping = aes(color = model_name),
                 size = 1.1) +
  coord_cartesian(xlim = c(0, 1)) +
  ggthemes::scale_color_colorblind("Model") +
  theme_bw()

## Warning: Using `size` aesthetic for lines was deprecated in ggplot2 3.4.0.
## ℹ Please use `linewidth` instead.

purrr::map2_dfr(list(bin_bayes_mod01, bin_bayes_mod02),
                as.character(1:2),
                function(mod, mod_name){as.data.frame(mod) %>% tibble::as_tibble() %>% 
                    select(sigma) %>% 
                    mutate(model_name = mod_name)}) %>% 
  ggplot(mapping = aes(x = sigma)) +
  geom_freqpoly(bins = 55,
                 mapping = aes(color = model_name),
                 size = 1.1) +
  ggthemes::scale_color_colorblind("Model") +
  theme_bw()

all_models_rsq %>%
  ggplot(mapping = aes(x = model_name, y = rsquared, fill = model_name)) +
  geom_boxplot(width = 0.3) + 
  scale_fill_brewer(palette = "Set2") +
  theme_bw() +
  theme(aspect.ratio = 1)

plot(bin_bayes_mod01, pars = names(bin_bayes_mod01$coefficients)) +
  geom_vline(xintercept = 0, color = "grey", linetype = "dashed", size = 1.0) +
  theme_bw()

bin_bayes_mod01 %>% readr::write_rds('bin_bayes_mod01.rds')
bin_bayes_mod02 %>% readr::write_rds('bin_bayes_mod02.rds')

bin_bayes_mod01 <- readr::read_rds('bin_bayes_mod01.rds')
bin_bayes_mod02 <- readr::read_rds('bin_bayes_mod02.rds')

holdout <- readr::read_csv('fall2022_holdout_inputs.csv', col_names = TRUE)

## Rows: 217 Columns: 10
## ── Column specification ────────────────────────────────────────────────────────
## Delimiter: ","
## chr (1): m
## dbl (9): x1, x2, x3, x4, v1, v2, v3, v4, v5
## 
## ℹ Use `spec()` to retrieve the full column specification for this data.
## ℹ Specify the column types or set `show_col_types = FALSE` to quiet this message.

df_holdout <- holdout %>% 
  mutate(x5 = 1 - (x1 + x2 + x3 + x4),
         w = x2 / (x3 + x4),
         z = (x1 + x2) / (x5 + x4),
         t = v1 * v2) %>% 
         select(x1,x2,x3,x4,v1,v2,v3,v4,v4,v5,x5,w,z,t,m) %>%
  glimpse()

## Rows: 217
## Columns: 14
## $ x1 <dbl> 0.107736, 0.300597, 0.496829, 0.244908, 0.388470, 0.110522, 0.49239…
## $ x2 <dbl> 0.022262, 0.058640, 0.031170, 0.033900, 0.053426, 0.051354, 0.03327…
## $ x3 <dbl> 0.113261, 0.106367, 0.093909, 0.210922, 0.197543, 0.269977, 0.23978…
## $ x4 <dbl> 0.050347, 0.049486, 0.049447, 0.048939, 0.049832, 0.051235, 0.05022…
## $ v1 <dbl> 6.423952, 6.211491, 1.383901, 8.891101, 3.868564, 1.340790, 6.28704…
## $ v2 <dbl> 0.205828, 0.392679, 0.800464, 0.800688, 0.206151, 0.555273, 0.60527…
## $ v3 <dbl> 1.892627, 2.120956, 7.940589, 1.931002, 8.039055, 2.061072, 8.04047…
## $ v4 <dbl> 0.105402, 0.114334, 0.439570, 0.451399, 0.586806, 0.565206, 0.88799…
## $ v5 <dbl> 0.671098, 2.107955, 9.841814, 9.175254, 6.341170, 9.268104, 4.91895…
## $ x5 <dbl> 0.706394, 0.484910, 0.328645, 0.461331, 0.310729, 0.516912, 0.18431…
## $ w  <dbl> 0.1360691, 0.3762520, 0.2174307, 0.1304544, 0.2159717, 0.1598757, 0…
## $ z  <dbl> 0.1717866, 0.6722300, 1.3964829, 0.5463931, 1.2255790, 0.2849192, 2…
## $ t  <dbl> 1.3222292, 2.4391221, 1.1077629, 7.1189979, 0.7975083, 0.7445045, 3…
## $ m  <chr> "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A…

df_test_classify <- df_classify %>% 
  select(x1,x2,x3,x4,v1,v2,v3,v4,v5,x5,w,z,t,m) %>% 
  glimpse()

## Rows: 1,252
## Columns: 14
## $ x1 <dbl> 0.025878, 0.030768, 0.019325, 0.306212, 0.031296, 0.031073, 0.02440…
## $ x2 <dbl> 0.255934, 0.261575, 0.020877, 0.033379, 0.259342, 0.027119, 0.03183…
## $ x3 <dbl> 0.492830, 0.498460, 0.258360, 0.255385, 0.264387, 0.260915, 0.02205…
## $ x4 <dbl> 0.012770, 0.055779, 0.012424, 0.056190, 0.056594, 0.055192, 0.05575…
## $ v1 <dbl> 0.275651, 0.343204, 4.998508, 5.090153, 5.031107, 9.977407, 0.23012…
## $ v2 <dbl> 0.033657, 0.027082, 0.030259, 0.052342, 0.517705, 0.532436, 1.00521…
## $ v3 <dbl> 1.166214, 1.260579, 1.298285, 1.322005, 1.368195, 1.298797, 1.16544…
## $ v4 <dbl> 0.408402, 0.664248, 0.412870, 0.652111, 0.533701, 0.857509, 0.69071…
## $ v5 <dbl> 0.525226, 2.866343, 0.409007, 0.861594, 6.451933, 0.958574, 0.20876…
## $ x5 <dbl> 0.212588, 0.153418, 0.689014, 0.348834, 0.388381, 0.625701, 0.86595…
## $ w  <dbl> 0.50619858, 0.47195344, 0.07709835, 0.10712990, 0.80796683, 0.08579…
## $ z  <dbl> 1.25050808, 1.39745312, 0.05731369, 0.83844661, 0.65315580, 0.08546…
## $ t  <dbl> 0.009277586, 0.009294651, 0.151249854, 0.266428788, 2.604629249, 5.…
## $ m  <chr> "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A…

sprintf("columns in df_all: %d vs columns in holdout: %d", ncol(df_test_classify), ncol(df_holdout))

## [1] "columns in df_all: 14 vs columns in holdout: 14"

pred_01 <- posterior_predict(bin_bayes_mod01, df_holdout) 

pred_02 <- posterior_predict(bin_bayes_mod02, df_holdout) 

posterior_predict(bin_bayes_mod01, newdata = holdout) %>% 
  as.data.frame() %>% tibble::as_tibble() %>% 
  tibble::rowid_to_column("post_id") %>% 
  pivot_longer(!c("post_id"), names_to = 'pred_id') %>% 
  mutate(across(.cols = 'pred_id', .fns = as.numeric)) %>% 
  group_by(pred_id) %>% 
  summarise(num_post = n(),
            y_avg = mean(value),
            y_lwr = quantile(value, 0.05),
            y_upr = quantile(value, 0.95)) %>% 
  ungroup() %>% 
  left_join(holdout %>% tibble::rowid_to_column("pred_id"),
            by = "pred_id") 

## # A tibble: 217 × 15
##    pred_id num_post y_avg  y_lwr y_upr    x1     x2     x3     x4    v1    v2
##      <dbl>    <int> <dbl>  <dbl> <dbl> <dbl>  <dbl>  <dbl>  <dbl> <dbl> <dbl>
##  1       1     4000 0.400 -0.420  1.19 0.108 0.0223 0.113  0.0503  6.42 0.206
##  2       2     4000 0.317 -0.463  1.08 0.301 0.0586 0.106  0.0495  6.21 0.393
##  3       3     4000 0.251 -0.522  1.01 0.497 0.0312 0.0939 0.0494  1.38 0.800
##  4       4     4000 0.400 -0.382  1.21 0.245 0.0339 0.211  0.0489  8.89 0.801
##  5       5     4000 0.377 -0.404  1.14 0.388 0.0534 0.198  0.0498  3.87 0.206
##  6       6     4000 0.301 -0.457  1.09 0.111 0.0514 0.270  0.0512  1.34 0.555
##  7       7     4000 0.325 -0.468  1.10 0.492 0.0333 0.240  0.0502  6.29 0.605
##  8       8     4000 0.519 -0.268  1.32 0.256 0.0557 0.328  0.0500  1.27 0.410
##  9       9     4000 0.457 -0.339  1.25 0.398 0.0519 0.323  0.0500  6.38 0.159
## 10      10     4000 0.652 -0.140  1.46 0.116 0.0589 0.380  0.0522  8.93 0.209
## # … with 207 more rows, and 4 more variables: v3 <dbl>, v4 <dbl>, v5 <dbl>,
## #   m <chr>

posterior_predict(bin_bayes_mod02, newdata = df_holdout) %>% 
  as.data.frame() %>% tibble::as_tibble() %>% 
  tibble::rowid_to_column("post_id") %>% 
  pivot_longer(!c("post_id"), names_to = 'pred_id') %>% 
  mutate(across(.cols = 'pred_id', .fns = as.numeric)) %>% 
  group_by(pred_id) %>% 
  summarise(num_post = n(),
            y_avg = mean(value),
            y_lwr = quantile(value, 0.05),
            y_upr = quantile(value, 0.95)) %>% 
  ungroup() %>% 
  left_join(holdout %>% tibble::rowid_to_column("pred_id"),
            by = "pred_id")

## # A tibble: 217 × 15
##    pred_id num_post y_avg  y_lwr y_upr    x1     x2     x3     x4    v1    v2
##      <dbl>    <int> <dbl>  <dbl> <dbl> <dbl>  <dbl>  <dbl>  <dbl> <dbl> <dbl>
##  1       1     4000 0.176 -0.551 0.909 0.108 0.0223 0.113  0.0503  6.42 0.206
##  2       2     4000 0.353 -0.371 1.06  0.301 0.0586 0.106  0.0495  6.21 0.393
##  3       3     4000 0.425 -0.305 1.13  0.497 0.0312 0.0939 0.0494  1.38 0.800
##  4       4     4000 0.457 -0.275 1.20  0.245 0.0339 0.211  0.0489  8.89 0.801
##  5       5     4000 0.502 -0.209 1.21  0.388 0.0534 0.198  0.0498  3.87 0.206
##  6       6     4000 0.429 -0.302 1.16  0.111 0.0514 0.270  0.0512  1.34 0.555
##  7       7     4000 0.438 -0.289 1.17  0.492 0.0333 0.240  0.0502  6.29 0.605
##  8       8     4000 0.594 -0.117 1.32  0.256 0.0557 0.328  0.0500  1.27 0.410
##  9       9     4000 0.507 -0.202 1.21  0.398 0.0519 0.323  0.0500  6.38 0.159
## 10      10     4000 0.591 -0.140 1.30  0.116 0.0589 0.380  0.0522  8.93 0.209
## # … with 207 more rows, and 4 more variables: v3 <dbl>, v4 <dbl>, v5 <dbl>,
## #   m <chr>

Classification – iiiD) Train/tune with resampling

Train, assess, tune, and compare more complex methods via resampling. • You may use either caret or tidymodels to handle the preprocessing, training, testing, and evaluation.

df_classify_bin <- df %>% 
  
  mutate(
    x5 = 1 - (x1 + x2 + x3 + x4),
         w = x2 / (x3 + x4),
         z = (x1 + x2) / (x5 + x4),
         t = v1 * v2,
        
         outcome = ifelse(output < 0.33, 'event', 'non_event'),
         outcome = factor(outcome, levels = c("event", "non_event")),
         y = ifelse(outcome == 'event', 1, 0) )%>%

  select(x1,x2,x3,x4,v1,v2,v3,v4,v4,v5,x5,w,z,t,m,outcome) %>% 
  glimpse()

## Rows: 1,252
## Columns: 15
## $ x1      <dbl> 0.025878, 0.030768, 0.019325, 0.306212, 0.031296, 0.031073, 0.…
## $ x2      <dbl> 0.255934, 0.261575, 0.020877, 0.033379, 0.259342, 0.027119, 0.…
## $ x3      <dbl> 0.492830, 0.498460, 0.258360, 0.255385, 0.264387, 0.260915, 0.…
## $ x4      <dbl> 0.012770, 0.055779, 0.012424, 0.056190, 0.056594, 0.055192, 0.…
## $ v1      <dbl> 0.275651, 0.343204, 4.998508, 5.090153, 5.031107, 9.977407, 0.…
## $ v2      <dbl> 0.033657, 0.027082, 0.030259, 0.052342, 0.517705, 0.532436, 1.…
## $ v3      <dbl> 1.166214, 1.260579, 1.298285, 1.322005, 1.368195, 1.298797, 1.…
## $ v4      <dbl> 0.408402, 0.664248, 0.412870, 0.652111, 0.533701, 0.857509, 0.…
## $ v5      <dbl> 0.525226, 2.866343, 0.409007, 0.861594, 6.451933, 0.958574, 0.…
## $ x5      <dbl> 0.212588, 0.153418, 0.689014, 0.348834, 0.388381, 0.625701, 0.…
## $ w       <dbl> 0.50619858, 0.47195344, 0.07709835, 0.10712990, 0.80796683, 0.…
## $ z       <dbl> 1.25050808, 1.39745312, 0.05731369, 0.83844661, 0.65315580, 0.…
## $ t       <dbl> 0.009277586, 0.009294651, 0.151249854, 0.266428788, 2.60462924…
## $ m       <chr> "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A", "A…
## $ outcome <fct> non_event, non_event, non_event, event, non_event, non_event, …

Resampling scheme

my_ctrl <- trainControl(method = "repeatedcv", number = 3, repeats = 3)

my_metric <- "Accuracy"

my_ctrl_b <- trainControl(method = "repeatedcv", number = 3, repeats =
                             3,
                             summaryFunction = twoClassSummary,
                             classProbs = TRUE,
                             savePredictions = TRUE)
my_metric_b <-"ROC"

Model and preprocessing

All categorical and continuous inputs - linear additive features

set.seed(4321)

fit_bin_lm_1 <- train(outcome ~ x5+v1+v2+v3+v4+m,
                  data = df_classify_bin,
                  method = "glm",
                  metric = my_metric,
                  preProcess = c("center", "scale"),
                  trControl = my_ctrl)

All pairwise interactions of continuous inputs, include additive categorical features

set.seed(4321)

fit_bin_lm_2 <- train( outcome ~ m + (x1+x2+x3+x4+v1+v2+v3+v4+v5)^2,
                  data = df_classify_bin ,
                  method = "glm",
                  metric = my_metric_b,
                  preProcess = c("center", "scale"),
                  trControl = my_ctrl_b)

2 models from iiA:

set.seed(2021)

fit_bin_lm_3 <- train(outcome ~ ns(z, 2)+ns(w, 2)+ ns(x5,2) + +ns(v1,2)+ns(v3,2)+ns(v4,2),
                  data = df_classify_bin ,
                  method = "glm",
                  metric = my_metric,
                 
                  preProcess = c("center", "scale"),
                  trControl = my_ctrl)

set.seed(2021)

fit_bin_lm_4 <- train(outcome ~ ns(x1, 2)+ns(x2, 2)+ ns(x3,2) + ns(x4,2)+ns(v1,2)+ns(v2,2)+ns(v3,2)+ns(v4,2)+ns(v5,2),
                  data = df_classify_bin ,
                  method = "glm",
                  metric = my_metric_b,
                 
                  preProcess = c("center", "scale"),
                  trControl = my_ctrl_b)

Regularized Regression with Elastic Net

fit_bin_enet_1 <- train(outcome ~  (x1+x2+x3+x4+v1+v2+v3+v4+v5) *m,
                    data = df_classify_bin,
                    method = "glmnet",
                    metric = my_metric,
                    preProcess = c("center", "scale"),
                    trControl = my_ctrl)

fit_bin_enet_1b <- train(outcome ~  m*((x5+w+t+z)^2),
                    data = df_classify_bin,
                    method = "glmnet",
                    metric = my_metric_b,
                    preProcess = c("center", "scale"),
                    trControl = my_ctrl_b)

Neural network – once with “base feature” set & once with “expanded feature” set

nnet_grid <- expand.grid(size = c(2, 4, 6, 8, 10, 12),
                         decay = exp(seq(-6, 2, length.out = 13)))


fit_bin_net_1 <- train(outcome ~ x1+x2+x3+x4+v1+v2+v3+v4+v5*m,
                    data = df_classify_bin,
                    method = "nnet",
                    metric = my_metric,
                    tunegrid=nnet_grid,
                    preProcess = c("center", "scale"),
                    trControl = my_ctrl,
                    trace = FALSE,
                    linout = 0)

plot(fit_bin_net_1, xTrans = log)

fit_bin_net_1b <- train(outcome ~  (x5+w+t+z),
                    data = df_classify_bin,
                    method = "nnet",
                    metric = my_metric_b,
                    preProcess = c("center", "scale"),
                    trControl = my_ctrl_b,
                    trace = FALSE,
                    linout = 0)

Random forest – once with “base feature” set & once with “expanded feature” set

fit_bin_rf_1 <- train(outcome ~  x1+x2+x3+x4+v1+v2+v3+v4+v5*m,
                    data = df_classify_bin,
                    method = "rf",
                    metric = my_metric,
                    trControl = my_ctrl,
                    importance = TRUE)

fit_bin_rf_1b <- train(outcome ~  (x5+w+t+z)*m,
                    data = df_classify_bin,
                    method = "rf",
                    metric = my_metric_b,
                    trControl = my_ctrl_b,
                    importance = TRUE)

Gradient boosted tree – once with “base feature” set & once with “expanded feature” set

fit_bin_xgb_1 <- train(outcome ~  x1+x2+x3+x4+v1+v2+v3+v4+v5*m,
                    data = df_classify_bin,
                    method = "xgbTree",
                    metric = my_metric,
                    trControl = my_ctrl,
                    importance = TRUE)

## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:25] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:26] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:27] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:28] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:29] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:30] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:31] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:32] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:33] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:34] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:35] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:36] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:37] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:38] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:39] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:40] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:41] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:42] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:43] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:44] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.

fit_bin_xgb_1b <- train(outcome ~  (x5+w+t+z)*m,
                    data = df_classify_bin,
                    method = "xgbTree",
                    metric = my_metric_b,
                    trControl = my_ctrl_b,
                    importance = TRUE)

## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:45] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:46] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:47] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:48] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:49] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:50] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:51] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:52] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:53] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:54] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:55] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:56] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:57] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:58] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:03:59] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:00] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:01] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:02] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:03] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:04] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:05] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:06] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.
## 
## 
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:07] WARNING: amalgamation/../src/c_api/c_api.cc:785: `ntree_limit` is deprecated, use `iteration_range` instead.
## [16:04:08] WARNING: amalgamation/../src/learner.cc:627: 
## Parameters: { "importance" } might not be used.
## 
##   This could be a false alarm, with some parameters getting used by language bindings but
##   then being mistakenly passed down to XGBoost core, or some parameter actually being used
##   but getting flagged wrongly here. Please open an issue if you find any such cases.

SVM - once with “base feature” set & once with “expanded feature” set

fit_bin_svm_1 <- train(outcome ~  (x5+v1+v2+v3+v4+v5)*m,
                    data = df_classify_bin,
                    method = "svmRadial",
                    metric = my_metric,
                    preProcess = c("center", "scale"),
                    trControl = my_ctrl,
                    importance = TRUE)

fit_bin_svm_1b <- train(outcome ~  (x5+w+t+z+t)*m,
                    data = df_classify_bin,
                    method = "svmRadial",
                    metric = my_metric_b,
                    preProcess = c("center", "scale"),
                    trControl = my_ctrl_b,
                    importance = TRUE)

plot(fit_bin_svm_1b, xTrans = log)

PLS - once with “base feature” set & once with “expanded feature” set

pls_grid <- expand.grid(ncomp = 1:5)
fit_bin_pls_1 <- train(outcome ~  (x5+v1+v2+v3+v4+v5)*m,
                    data = df_classify_bin,
                    method = "pls",
                    metric = my_metric,
                    tuneGrid = pls_grid,
                    preProcess = c("center", "scale"),
                    trControl = my_ctrl,
                    importance = TRUE)

pls_grid <- expand.grid(ncomp = 1:5)
fit_bin_pls_1b <- train(outcome ~  (x5+w+t+z)*m,
                    data = df_classify_bin,
                    method = "pls",
                    metric = my_metric_b,
                    tuneGrid = pls_grid,
                    preProcess = c("center", "scale"),
                    trControl = my_ctrl_b,
                    importance = TRUE)

plot(fit_bin_pls_1b, xTrans = log)

Performance Analysis

my_results <- resamples(list(LM_add = fit_bin_lm_1,
                             
                             LM_complex = fit_bin_lm_3,
                             
                             ENET_complex = fit_bin_enet_1,
                             NNET = fit_bin_net_1,
                          
                             RF1 = fit_bin_rf_1,
                           
                             XGB = fit_bin_xgb_1,
                           
                             PLS = fit_bin_pls_1,
                            
                             SVM = fit_bin_svm_1
                            ))

Model Comparison

dotplot(my_results, metric = "Accuracy")

my_results_roc <- resamples(list(LM_pairs = fit_bin_lm_2,
                            
                             LM_complex2=fit_bin_lm_4,
                             
                             ENET_add = fit_bin_enet_1b,
                             
                             ENET_complex = fit_bin_enet_1b,
                             
                             NNET2 = fit_bin_net_1b,
                       
                             RF2 = fit_bin_rf_1b,
                           
                        
                             XGB2 = fit_bin_xgb_1b,
                            
                             PLS2 = fit_bin_pls_1b,
                             
                             SVM2 = fit_bin_svm_1b
                             ))

Model Comparison

dotplot(my_results_roc)

fit_bin_xgb_1b %>% readr::write_rds('cls_best_model.rds')

Which model is the best if you are interested in maximizing Accuracy compared to maximizing the Area Under the ROC Curve (ROC AUC)?

XGB is the best model using Accuracy and ROC

Performed the best using Accuracy and the area under the ROC as the metric.